Type-forming machine.



M. PFA U.

TYPE FORMING MACHINE.

APPLIOATION I'ILBD APR.14, 1911.

' 1,037,169. Patnted Aug. 27, 1912.

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MineJ eJf v lvzv/eniorx M CJJLUMBIA PLANOGRAPH CO" WASHINGTON. D- Cr M.PPAU.

TYPE FORMING MACHINE.

APPLICATION IILBD APRQM, 1911.

1,037,,1 69, Patented Aug. 27, 1912.

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COLUMBIA Pl-ANDGRAPH C0 WASHINGTON. nc.

iii ll STATES MAX PFAU, OF WOODSTOCK, ILLINOIQ ASSIGNOR TO THE EMERSONTYPEWRITER (30.,

0F WOODSTOCK, ILLINOIS, A

CORPORATION OF ILLINOIS.

TYPE-FORMING iviaonrun.

Specification of Letters aten Patented Aug. 2? 1912.

Application filed April 14, .1911. Serial No. 621,108.

To all whom 2'25 may concern:

Be it known that 1,. MAX PFATJ, a citizen of Saxony, Germany, residingat Woodstock, in the county of Mclilenry and State of Illinois, haveinvented certain new and useful ln-iprovements in Type-Forming Machines,of which the following is a specification- The present invention relatestoa machine utilized for forming characters upon type, and the class oftype upon which it is more especially designed to form characters isthat class used in connection with typewriting machines.

One object of the present invention is to provide a form of connectionbetween the swinging heads.

A further object of the invention is to provide means for locking thetype carrier forming a portion of one of the heads to the body portionof said head, and to provide means for throwing the locking means out ofoperative position, which will also operate mechanism for ejectingthetype from the head.

The invention further relates to the featurcs of construction and to thecombination of parts hereinafter described and claimed.

In the drawings, Figure 1 is a view showing two heads of the styleemployed with section being taken on line 33 of Fig. 2;

Fig. 4., a detail plan view, partly in section, showing the methodemployed in the present invention for connecting the heads together;Fig. 5, a detail of one of the heads with the cover plate thereforremoved; Fig. 6, a detail plan view, partly in section, said sectionbeing taken on line 6-6 of Fig. 3; Fig. 7, a detail. showing one of theflanged plates employed in the connection between the heads; and Fig. 8,a plan view of the member which carries the ejecting pins.

In mechanism of the class to which the present invention relates, it iscustomary to utilize opposed oscillating heads, one of 1 which carries ablank upon which the type is formed; and the characters are formed 7upon the type blank by a rolling action of the matrix against a surfaceof the blank. Only one of these heads is power driven, and, of course,there must be some connect-io-n provided between the heads so that theywill oscillate in unison. Otherwise, j there would be a misalinementbetween the matrix and the type blank and an imperfect type wouldresult. It has been customary, so far as I am aware, to employ a gearconnection between these two oscillating heads. This has been found tobe objec' tionable because of the fact that the gear teeth will becomeworn after a relatively 1 short period of usage, and hence a slippagemation of the type. It is one of the primary ob ects of the presentinvention to provide a connection between these heads which will moniousmovement of the two heads during the type forming operation.

in illustrating the present invention, ithas only been deemed necessaryto show those parts which relate to, the subject matter thereof. Themain portion of the machine may be of any ordinary and well known typeand the parts which compose the features of the present invention can beapplied to any form of type making machine desired. As stated in theobjects, the invention consists in two features, the first being theconnection between the oscillating heads.

In Fig. 1 are shown two oscillating heads 9 and 10, each of which ismounted upon a suitable shaft 11. One of the heads, namely, the head 10,carries the type blank 10-, and the other, the head 9, carries thematrix 10", and the head 9 is power driven by any suitable mechanismwhich will impart a rocking movement thereto, as, for instance, aneccentric 10. Each head carries a bloc-k 12, which is mounted within arecess 12 in the body portion of the head and is held in place bysecuring plates 12, and is maintained in set position by a wedge member13, or in any other suitable manner. It is understood that the head 9and the head 10 are each provided with one of these blocks 12. Securedto each of the blocks 12 is a flanged which carries a matrix, and theother of plate 13, resting within a slot 12" in the 1 allowed betweenthe heads during the foreliminate all slippage and insure theliarsecuring plate'12 flange 14, best shown in Fig. 4. This flange, asshown, 18 arcuate m formatlon and 1S adapted to rest within a circulargroove'15 in a disk 16. This grove is produced, as more clearly shown inFig. 4:, by forming a flange 17 on the disk, and by inserting into thecenter of the disk a threaded member 18, which terminates in a taperedhead 19, which may be termed a hub. One of the faces of each of theflanges 14 is tapered so as to correspond tothe tapering formation ofthe head 19.

' As heretofore stated, each block 12 is provided with a plate 13 sothat, as will be seen from a study of Figs. 1, 2 and 4, there '1 are twoof these plates opposed to one another,and each having an arcuateshapedflange 14 resting within the groove 15. As the blocks 12 oscillate backand forth by the movements of the head 9, taking this head to be thepower driven one, through the medium of the engagement of the flange 14with the groove 15, the disk 16 will be raised and lowered in conformitywith said movements. This will cause a corresponding 2 oscillation ofthe head 10 through the me-' dium of the engagement of the plate 13 ofthe head 9 with the disk 16, and hence a corresponding oscillation ofthe heads 9 and 10 around the centers of the shafts 11. By this 1arrangement, a harmonious oscillation of the two heads is effected, andthis is produced without the use'of teeth or similar contrivances, whichare liable to become worn by wear and permit of a lost motion or play inthe movement of the heads. If the parts of this connection should becomeworn during usage, the play can be taken up'by manipulating thescrew-threadedmember 18 so as to force the tapered head 19 fartherinward and into proper engagement with the flanges I 14 of the plates13*.

Another feature of the present invention lies in the provision of meansfor locking a type carrying member to one of the heads, and also to themeans for mechanically ejecting the typefrom the type carrying member.By referring to the plan view of the head 9, which is shown in Fig. 2,it will be seenthat said head comprises a body portion 20, which is cutaway to allow of the interposition therein of a type carrying member 21,which consists of a block-like portion 22 and an arm 23. The arm ismounted upon'the shaft carrying the head 9. Thetype carrying member islocked to the body portion of the head 9 by means of a latch 24, which,as shown more clearlyin Fig. 2, is mounted within a recess 25 in thehead 9. This latch is held normally projected by a leaf spring 26, and,in addition, is engaged by a coiled spring 27, the leaf spring, whenthetype carrying member is thrown into lockedposition, tends to pull andhaving a projecting! the forward end of "t-he latch over into tion bymeans of a hooked clamp 28, best shown in Fig. 2. y This clamp ismounted upon a pivot 29; and a handle 30 is provided, which is mountedupon a stem or shaft 31, said handle being provided with a lug or cam32, which, as shown in F 2, rests against a portion of the clamp 28 andserves to throw and, maintain the clamp in locked position. Thisarrangement affords a very firm and eflicient means of clamping the typecarrying member to the body of the head, and insures against movement ofthe type carrying member with respect to the head, which, obviously,would be very undesirable, since it would allow of a slippage betweenthe matrix and the type'blank, thus producing a type having imperfectcharacters thereon. When the type carrying: V member is swung clear'of'the swinging head,

the spring 27 will then act to throw the latch back and hold it in placeto be thrown to locking position. When the type carrying member isthrown back to normal position, after the type carrying member en gagesthe spring 26, the latch isthrown forward into the position shown bysuch engagement. V Means for ejecting the type are shown, which consistof a series of pins 33 project ing through rests in a block 34: heldwithin the type carrying member 22; and said block is provided with agroove 35, in which rests theblank 10 of the type to be formed.

The pins 33 are carried by a head 36, to which is connected a stem 37,resting against a portion 38 of the stem'or shaft 31. This portion 38,as best shown in Figs. 3 and 6, is partially cut away so as to make itsouter periphery of an eccentric or cam formation. A spring 39 isprovided, which tends to'maintain' the stem 37 in engagement with theeccentric portion 38 of the shaft 31. The operation of this portion ofthe device is obvious from a study ofthe drawings. When the shaft 31 isturned through half a revolution, it moves the cam portion 38 into aposition opposite to that shown, and the spring 39 will act to throw thehead 36 rearwardly and retract the pins 33 from the slot 35. This willbe the position the parts assume when the characters are being formed onthe type. The position shown in Fig. 6 is the position assumed by theparts when the type is being formed. In the position the pins assumewhen performing the ejecting operation the pins 33 project intothegroove 35 in a manner to force the type outwardly therefrom. It will benoted that the handle 30 is keyed or otherwise secured toithe shaft 31,and that it is the rotative movements of this shaft ,from the lockingmember,

center,

ber. Vhen the handle is swung, however,

to jbe 'released so as to permit the clamp the ejecting inech anismmoves into position toper'form the ejecting operation, holding member isand swung upwardly released from the head around its pivotal upon whichthe head 9 is mounted, the ejecting mechanism will have acted to torcethe type out of the groove 35 and place it in position where it can bereadily extracted from the type holding member by the oper,- ator. g

I claim:

1. In a type forming machine, the combination of two opposed swingingheads, a

type blank holder in (meat said heads, a

matrix holder in the other of said heads, said holders belng operat velypositioned with respect to one another, aconnection between said heads,comprising a flanged disk, plates secured to each head, an arcuateshapedflange on each plate adapted to e1igage the flange on the disk, andpower driven means for swinging one of said I heads, said connectioncausing both of said heads to swing in'unison, substantially asdescribed.

2. In a type forming machine, the combination of two opposed swingingheads, a type blank holder in one of said heads, a matrix holder in theother of said heads, said holders being operatively positioned withrespect to one another, a connection between said heads, comprising adisk provided with a circular groove, plates secured to each head, andarcuate-shaped flanges on said plates adapted .to rest within saidgroove, substantially as described.

' 3. In a type forming machine, the combination of two opposed swingingheads, a type blank holder in one of said heads, a matrix holder in theother of said heads, said holders being operatively positioned to oneanother, means operatively connected for actuating one of said heads, aconnection between said heads to cause them to move in unison,comprising a flanged disk having a centrally located tapered hub, platessecured to each head, formed with arcuate-shaped flanges adapted torest'between the flange and hub of the disk, and

the inner faces of the flanges and the plates so that when the typewhich is the center of the shaft 111,

' type blank unison, comprising a flanged to each head,

form to the taper of the said holders being operatively positioned toone another, means operatively connected for actuating one of saidheads, a connection between said heads to cause them to move in unison,comprising a flanged disk,

plates secured to each head, arcuate-shaped flanges on said platesengaging the flange on the disk, and means for maintaining the flangeonthe disk and flanges on the plate in tirm engagement, substantially asde scribed."

5. In a type forming machine, the combination of two opposed swingingheads, a holder in one of said heads, a matrix holder in the other ofsaid heads,

said holders being operatively positioned to one another, meansoperatively connected to actuate one of said heads, a connection betweensaid heads to cause them to move in disk having a centrally locatedtapered hub, plates secured arcuateshaped flanges on said plates adaptedto rest between the flange and hub of the disk, the inner faces of theflanges on the plates being tapered to con hub, said hub being in theform of a screw-threaded stem, substantially as described.

6. In a type forming machine, the combination of two opposed swingingheads, a type blank holder in one of said heads, a matrix holder in theother of said heads, said holders being operatively positioned to oneanother, mechanism operatively connected tor actuating one of saidheads, a

connection between said heads to cause them to move in unison,comprising a disk provided with a centrally located hub, and a circulargroove around the hub, plates secured to each head, and arcuatesl1apedflanges on said plates adapted to rest within said groove, substantiallyas described.

7 In a type forming machine, the combination of two heads, meansoperatively connected for actuating said heads, a type holder carried byone of said heads, a matrix holder carried by the other of said heads,said holders being operatively positioned to one another, said typeholder being movable independently of the head in which it is mounted,means for locking said holder to said head, means for ejecting the typeblank from the holder, and a single movable member for directlyoperating said ejecting means and moving said locking means to lockingposition, substantially as described.

8. In a type forming machine, the combination of two heads, meansoperatively connected tor actuating said heads, a type blank holdercarried by one of said heads and movable independently of said head, amatrix holder carried by the other of said heads, said holders beingoperatively positioned to one another, means for locking said type blankholder to said head, means for ejecting the type blank from the holder,and a rock shaft-controlling the locking means and operating theejecting means by the same movement, substantially as described.

9. In a type forming machine, the combination of two opposed movableheads, means operatively connected for actuating said heads, a typeblank holder carried by one of said heads, and movable independentiy ofsaid head, a matrix holder in the other of said heads, said holdersbeing operatively positioned to one another, means for locking saidblank holder in position upon said head, consisting of a hooked latch,means tending to throw said latch out of locking position after saidtype holder has been released,

means tending to hold said latch in engaging position when said typeblank holder is in locked position, and means for controlling themovements of said latch, substantially as described.

10. In a type forming machine, the combination of two movable heads,means operatively connected for actuating said heads, a type blankholder carried by one of said heads, a matrix holder carried by theother of said heads, said holders being operatively positioned to oneanother, means for ejectirig type from the type blank holder, comprisinga shaft having a cammed surface thereon, a movable block in engagementwith said cammed surface, pins on said block forming the ejectingmembers, and tension mechanism for moving the block in one direction,substantially as described.

11. In a type forming machine, the combination of two heads swingingfrom opposed pivotal centers, a type blank holder in one of said heads,a matrix holder in the other of said heads, power driven means forswinging one of said heads, a member interposed between said heads and atongue and groove connection between the heads and member to cause theheads to move in unison and in opposite directions, substantially asdescribed.

12. In a type forming machine, the combination of two opposed heads, atype blank holder carried by one of said heads, a matrix holder carriedby the other of said heads, said holders being operatively positioned toone another, means for locking said holder to said head, means formoving said locking mechanism to inoperative position, means forpreventing the type blank from being inserted in said holder while saidholder is inunlocked position, and means operatively connected foractuating the mecha nism to effect the type formingoperation,substantially as described.

MAX PFAU.

\Vitnesses FRANK VVILDER, D. C. Anna-s.

Copies of this oatent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

